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Finding the Fourth Proportional to 315,799.25, 473,700.92 and 126,275.54

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Solution

The fourth proportional to 315,799.25, 473,700.92 and 126,275.54 is: 189,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,799.25 : 473,700.92 = 126,275.54 : x
  2. Step 2: Convert to fraction form
    315,799.25/473,700.92 = 126,275.54/x
  3. Step 3: Cross multiply
    315,799.25x = 473,700.92 × 126,275.54
  4. Step 4: Simplify right side
    315,799.25x = 59,816,839,471.50
  5. Step 5: Solve for x
    x = 59,816,839,471.50/315,799.25
  6. Step 6: Final answer
    x = 189,414.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.